Keymatrix for a telephone handset



FIG. 1 is a front, top and right side perspective view of a keymatrix for a telephone handset showing our new design;

FIG. 2 is a front elevational view thereof; and,

FIG. 3 is a left side elevational view, the opposite side being a mirror image thereof.

The dotted lines showing the outline of a telephone handset is for illustration purposes only and forms no part of the claimed invention. 

The ornamental design for a keymatrix for a telephone handset, as shown and described. 